Home / 621,114.14-857,167.92-349,267.61

Finding the Fourth Proportional to 621,114.14, 857,167.92 and 349,267.61

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Solution

The fourth proportional to 621,114.14, 857,167.92 and 349,267.61 is: 482,006.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,114.14 : 857,167.92 = 349,267.61 : x
  2. Step 2: Convert to fraction form
    621,114.14/857,167.92 = 349,267.61/x
  3. Step 3: Cross multiply
    621,114.14x = 857,167.92 × 349,267.61
  4. Step 4: Simplify right side
    621,114.14x = 299,380,990,787.07
  5. Step 5: Solve for x
    x = 299,380,990,787.07/621,114.14
  6. Step 6: Final answer
    x = 482,006.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.